Qfocus Focus utility: Can anyone help?

Hello everybody,

does anyone know how to use the Focus utility contained in Qfocus? Can it be used for live video feed or is it supposed to work on still images.
I tried for veideo feed, but after a few seconds the video feed disappears and the program crashes. I use windows XP on the machine I tried Qfocus on.

Thanks for any reply.

Gianluca